Description
Adversary-induced keystream re-use on TETRA air-interface encrypted traffic using any TEA keystream generator. IV generation is based upon several TDMA frame counters, which are frequently broadcast by the infrastructure in an unauthenticated manner. An active adversary can manipulate the view of these counters in a mobile station, provoking keystream re-use. By sending crafted messages to the MS and analyzing MS responses, keystream for arbitrary frames can be recovered.
References (1)
Core 1
Core References
Vendor Advisory related
https://tetraburst.com/
Scores
CVSS v3
8.8
EPSS
0.0018
EPSS Percentile
39.7%
Attack Vector
ADJACENT_NETWORK
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Details
CWE
CWE-639
CWE-323
Status
published
Products (1)
midnightblue/tetra\
burst
Published
Oct 19, 2023
Tracked Since
Feb 18, 2026